To address the issue of "No connection to server" in the TeleGuard app, follow these detailed steps:

### Step 1: Check Your Internet Connection

1. Verify Wi-Fi or Mobile Data: Ensure that your device is connected to the internet. You can do this by trying to browse a webpage or using another app that requires internet access.

2. Reset Network Settings:
- Go to Settings on your device.
- Tap on Network & Internet.
- Depending on your device, look for Reset Network Settings and confirm the action.

### Step 2: Restart the App

1. Close TeleGuard Completely:
- On Android, use the recent apps button, find TeleGuard, and swipe it away to close it.

2. Reopen TeleGuard: Launch the app again to see if the problem persists.

### Step 3: Update the App

1. Open Google Play Store:
- Search for TeleGuard using the search bar.

2. Check for Updates:
- If an update is available, you will see the option to Update. Install the latest version to ensure you're using an updated app that fixes bugs.

### Step 4: Check App Permissions

1. Go to Settings:
- Navigate to Apps & Notifications and find TeleGuard.

2. Review Permissions:
- Ensure that necessary permissions (e.g., internet access) are enabled. Allow any permissions that may be essential for the app's operation.

### Step 5: Clear App Cache and Data

1. Access App Settings:
- Go back to Settings, select Apps & Notifications, and open TeleGuard.

2. Clear Cache/Data:
- Tap on Storage, then choose Clear Cache and, if necessary, Clear Data (be aware this may delete some user data/settings).

### Step 6: Reinstall TeleGuard

1. Uninstall the App:
- In the Apps & Notifications section, find TeleGuard and select Uninstall.

2. Reinstall from Google Play Store:
- Re-download and install TeleGuard to start fresh and resolve any installation issues.

### Step 7: Contact Support

If none of the above steps resolve the issue, you may need to consult TeleGuard's customer support for further assistance. TeleGuard offers 24/7 support, which can address specific problems you may be facing - learn more.

### Additional Troubleshooting

- Check Server Status: Sometimes the app's server might be down for maintenance. Visit relevant community forums or the official TeleGuard website for updates.

- Reboot Your Device: A simple restart can sometimes resolve connectivity issues and refresh your system’s performance.

Implement these steps carefully to diagnose and potentially fix the "No connection to server" issue in the TeleGuard app. If problems persist after trying all of the above measures, consider reaching out to the TeleGuard support team directly for specialized assistance - learn more.